can’t/don’t believe something

From Longman Dictionary of Contemporary Englishcan’t/don’t believe somethingcan’t/don’t believe somethingSURPRISEDused when you are very surprised or shocked by somethingI can’t believe he’s expecting us to work on Sunday!I couldn’t believe it when he told me what had happened.can hardly/scarcely believe somethingI could scarcely believe my luck. →believe

Examples from the Corpus

can’t/don’t believe something• When I saw the video, I was like, I don't believe it!• I can't believe you lied to me!